Improved vise



dinde-1I gime @zum entre.

Letters Patent' No. 91,065, dated June 8, 1869.

IMPROVED VISE.

. The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may conce/rn:

Be it known that I, ALBAN G. ANDRN, of Gottenburg, in the Kingdom of Sweden, have invented a new and useful Improvement in Bench-Vise; and I do hereby declare that the followingis a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a longitudinal section of a vise with my improvements applied thereto; and

Figure 2 represents a transverse section, taken on line x-y of fig. 1.

The nature of my invention consists in the arrangement, withthe deeply-recessed stationary jaw and the screw-shaft, ofthe protecting and sliding flanged support, as shown and hereafter described.

In the accompanying drawings- A is the stationary jaw;

B, the movable jaw; and C, the screw-shaft, which is provided with a screw, a, to Igit the female screw thread, cutting .the movable `1aw 1 D is the screw-shaft protector and sliding support, arranged concentric with the screw-shaft C, its rear end being'tted in a recess, or chamber formed in the sliding jaw B, as fully indicated in fig. 1.

The outer end of the screw-protector and support D is securely fastened to the movable jaw B, by a clampscrcw b, or similar means.

'llie front end ofthe screw-protector and sliding shaft support D is made with an internal ilange, n, which just fits the smooth part of the screw-shaft C.

From the flange In back to the, stationary jaw B, a narrow space, or chamber,.),.is left between the protector D and the shaft O, as clearlyindicated in the drawings. Y

A groove., c, is cnt in the front end of the screwpatent; but

iVhat I do claim as my invention, and desire to seshaft O, to receive the upper end of the locking-piece d, which is held to the front end of the stationary jaw A, by means of the screw, or bolt e, whereby, when the screw-shaft is turned, by means of the handle F, to throw the movable jaw in or out, the screw-shaft is retained in its proper relative position, while, at the saine time, it can be quickly removed from both of the jaws by detaching thc locking-parts d and e.

As the protecting-tube D extends into the stationaryjaw, the distance the jaw B is ordinarily moved,

the bearing, or support which the shaft GA has in the stationary jaw A is-very muchrednced; consequently the screw-end of the shaft would have a tendency' to sag and bear heavily ppon the lower part of the female thread in, the movable jaw B, if it `were not for the ange n, which serves as a sliding support to retain the cuter screw-end of shaft O in aceutral position, as respects the hole in the movable jaw B.

I he flange n also serves the purpose of a sliding guard to prevent dirt and dust working in upon the shaft C and screw (t, through the chamber E.

I am aware that a patent was grantedpto Q. S. Backus, on the 2d day of June, 1868, for improvement in vises, and I do not, therefore, claim any part of the invention shown and described in said Backuss cure by Letters Patent, is-

. The arrangement, with the deeply-recessed stationary jaw A and screw-shaft C, of the anged protecting and sliding support D, substantially as shown and described.

ALBAN G. ANDRN.

Witnesses:

RL H. EDDY, SAMUEn N. PIPER. 

